4. Tensile Load/Installation Pull Guidelines
• Limit 90º bends in conduit to 2
• Cable should not be pulled through a length of
conduit exceeding 30m (100 ft)
• Support cables every 4 - 5 ft (1200mm - 1500mm)
• Avoid sharp objects, turns and corners
• Use a pulley or a third man at turns and corners
• Do not “jerk” cable
• Pull around obstructions (HVAC) as required
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5. Bend Radius
UTP STP
no less than 4x no less than
10x (multi-pair) 7.5cm (3”) non-plenum
15cm (6”) plenum
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22. Ducts and Conduit Guidelines
• Fiber and copper pulled in separate conduit
− Use innerduct if in same conduit
• Clear internal obstructions, ream conduit ends, and use bushings
• Pull all cable at same time, if possible
• Use a partner at the entry point
• Use lubricants if necessary (do not use petroleum-based)
• Pull in a continuous manner without stopping
• Do not pull a pull line through at the same time as the cable
• Do not pull a terminated cable through the conduit
• If pull boxes are used, pull to the first box, coil up the cable, then
feed it back into the pull box and then pull through to the next one
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29. Vertical Pathway Cabling Installations
3-bolt Clamp
(Shoe or Pulley)
D-Rings or Straps
Conduit Sleeve
Conduit Sleeve
(Firestop)
Strand
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30. IDC and Color Coding
White/ Blue/ White/ Orange/ White/ Green/ White/ Brown/
Blue White Orange White Green White Brown White
Pair 1 Pair 2 Pair 3 Pair 4
25 pair Color Code
White Wires with predominant
5th pair = Slate Red family color are tip.
Black Wires with predominant
Yellow pair color are ring.
Violet
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